perhaps "grievances" would be a best choice of words?
(as this is not a bug or anomaly, it's just way to make more money....lol!)
like mentioned here
https://www.eevblog.com/forum/blog/eevblog-683-rigol-ds1000z-ds2000-oscilloscope-jitter-problems/msg555785/#msg5557851054z has 700x200 resolution, so nobody should scratch their heads when they see jaggy screenshots....
and i think that goes for whole z series...all models have 8bit adcs?
if i read the specs pdf, even 4k series mentions 12bit in "only if" terms, simillar to 1000z's "12bits max".
so it's 8bit everywhere.
so it's low vertical res everywhere. out of curiosity, is this the norm today, are "more vertical bits" reserved for much more expensive scopes?
as for this reply from marmad
Well, forgetting Hi Res for a moment, the true resolution of the ADC is 256 bits - so the question becomes: how do you map 256 voltage levels to 400 vertical pixels? You have to so some upsampling. I haven't examined the DS1000Z closely, but on the DS2000, Rigol maps each level to 2 pixels, so the full ADC = ~10.2 vertical divs.
on "old" thread,
i would say they just "crop" those extra 56
levels (i would like it if they were to put "256 bits" adc like you've mistaken above!), because how do you decide which pixel will be "2 pixel height" and which "just one", and if "just one" doesn't even exist (in any screenshot), then you surely have only 200 pixels.
edit/ they can also map 256 levels to 200 pixels by making each "double" pixel have more than one color tone, which they probably do, but did anybody check the vertical resolution by providing input signal with 256 (and more) voltage levels?
in my screenshot from that thread, i just see "2 pixel height".
offcourse resampler you use to blow the image counts, must be "point resize" or so...irfan view should do it if you just hit the "+" (zoom in) button...see the image..any vertical samples of just 1 pixel height?
inspect the irfan-view blown image below.